Everyone has pretended to be sick, at least once, to get out of some sort of obligation or to convince our parents to let us stay home from school. Many animals do the opposite. They pretend to be well, when they're actually in great danger from poor health.

Illness is a powerful force in evolution, pushing animals to evolve a suite of behaviors - "sickness behaviors" - to help them get over those illnesses more efficiently. For a long time, doctors thought that they were just side effects of being sick, but in recent decades researchers have increasingly come to…

Written and directed by Andy Abrahams Wilson, the 2008 Academy Award-nominated documentary Under Our Skin explores and exposes one of our nation's most threatening and least regarded epidemic illnesses: Lyme disease.

A man hassled a neighbor over his Wi-Fi allergies, and we dismissed him as a member of the tin-foil hat brigade. Now we're reading PopSci's look at the Electro-hypersensitivity—the real deal gadget allergy—and we're feeling sorta like assholes.

One of the first things we noticed when Steve Jobs came out on stage was that he was noticeably thinner than he was in previous events. We were vaguely concerned since he's had a recent history of what could be considered pretty severe health problems, but it looks like it's just a "common bug" says Apple PR. At age…

For people too obese to get out of bed comes the abdominal fat-measuring machine. Tanita's AB-101 zones in on the fat around your midriff and then, thanks to a scanning process similar to X-rays, can tell you whether you should be looking for something in the outsize department of Caskets R Us.